Calf and bull wheel bearing.



' R. C. BAKER.

-CALF AND BULL WHEEL BEARING. APPLICATION FILED MAY I5. 913.

1.1 55,539. Patented, Oct. 5, 1915.

E %E% PATENT @Fl lIQhZ.

REUBEN C. BAKER, OF COALINGA, CALIFORNIA.

CALF AND BULL WHEEL BEARING:

Application filed May 15, 1913. Serial No. 767,886.

. providea bearing with the front cap thereof removably secured to the base of the bearing and to further provide a recess in the front cap whereby a suitable compression mem ber may beinserted th'ereagainst to successfully take up the forces which are exerted by the bull wheel during the drilling operation.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made Within the scope of what is claimed, without departing from the spirit of the invention.

In the drawings accompanying this specification and forminga part thereof, the preferable form of my inventionis illustrated,

in which I Figure 1 is a vertical cross sectional view of my improved bull wheel bearing. Fig. 2 represents a top plan view thereof. Fig. 3 is a diagrammatic view. showing my improved bull wheel bearing in elevation and the manner in which the same is secured to the supporting structure therefor.

Referring to the drawings in which similar reference numerals designate corresponding parts throughout the several views, 1 is the body portion of the pillow or bearing block and 2 are bosses outstanding there from and through which extend the apertures 3, the same forming means whereby the bull wheel bearing may be rigidly secured to a supporting structure.

The said body portion is provided with the semicircular openings 4 extending transverselythereof and the cap receiving surface 5 of the body portion intersecting the said 'openingxupon a diamet'ric line'and With the plane t ereof extending at an acute angle Specification of Letters Patent.

Fatented Uet. 5, 1915 through and be rotatably supported thereby.

The cap 7 is of a. size adapted to fit between the shoulders 66 of the body portion and in order to further secure the cap thereto, suitable apertures extend therethrough and are adapted to be engaged by the stud bolts 9, the latter threadedly engaging'the body portion 1. In order to rigidly hold the cap in. position, thenuts 1O threadedly engage the outer portions of the stud bolts 9 and are adapted to contact with the outer surface of the cap and to be tightened there against. Arranged parallel to the meeting faces of the cap and the body portion is the milled surface 11 provided with suitable upstanding shoulders 12 at the side edges thereof. The milled surface 11 is positioned directly above the semi-circular opening 8 of the cap and is adapted to receive a compression post or member thereagainst and to prevent the displacement thereof.

As illustrated in Fig. 3 of the drawings, a compression member or post 13 is rigidly secured to tie suppprting structure and is positioned 'with the end thereof within the re cess defined by the surface 11 and the upstanding shoulders 12. As is well known in the drilling art, when the cable is wound upon the hull wheel' and released, that during said drilling operation, a certain force .will be exerted upon the bull wheel bearing in an upward and outward direction in ali-nement with the rope or cable to which the drill is attached. Therefore, with the hearing as I have described it, the outward force will be successfully taken up by the compression member 13 acting directly against the outer surface'of the cap to which up by the body portion of the pillow or bearing block and transmitted to the base thereof which is rigidly secured to the supporting structure by suitable bolts passing through the openings 3 therein. Although no lining has been illustrated as positioned within the opening defined by the semi-circular portionskt and 8. it will be Understood that suitable babbitt or brass sheets may be inserted therein. The bearing herein de scribed is particularly adapted to support a bull wheel which will be subject to the stress such as I have desor'bed.

Having thus fully described the invention, what I claim to be new and original with me is In well drilling machinery, thecombination with an upstanding supporting structure and a laterally extending structure fixed relative thereto. of a bearing block secured to one side of the upstanding structure and provided with an inclined active face formed with a recess-for the reception of a revoluble element, a cap secured upon the recessed face of the bearing block and having a recess registering with the recess in said face of the block, thus to form a circular opening for the reception of a revoluhle element. said cap having a recess in its outer or inclined upper face, and an upwardly and laterally inclined compression member hearing at one end within said last named recess within the cap and at its other end against the horizontally extending fixed structure, said member constituting means for reinforcing the cap against upward and outward pressure and constituting means for binding the bearing block against the upstanding supporting member.

In testimony that I claim the foregoing as my own, I have hereto aiiixed iny signature in the presence of two witnesses.

\ REUBEN O. BAKER.

Witnesses D. F. MGDOUGALL,

J.-A. STULE. 

